Reviewed, UniProtKB/Swiss-Prot Q68X16 (NUOA_RICTY)

Names and origin

Protein names

Recommended name:
    NADH-quinone oxidoreductase subunit A
    EC=1.6.99.5
Alternative name(s):
    NADH dehydrogenase I subunit A
    NDH-1 subunit A
    NUO1

Gene names

Name:	nuoA
Ordered Locus Names:	RT0346

Organism

Rickettsia typhi [Complete proteome] [HAMAP]

Taxonomic identifier

785 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Alphaproteobacteria › Rickettsiales › Rickettsiaceae › Rickettsieae › Rickettsia › typhus group

Protein attributes

Sequence length	123 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Inferred from homology.

General annotation (Comments)

Function	NDH-1 shuttles electrons from NADH, via FMN and iron-sulfur (Fe-S) centers, to quinones in the respiratory chain. The immediate electron acceptor for the enzyme in this species is believed to be ubiquinone. Couples the redox reaction to proton translocation (for every two electrons transferred, four hydrogen ions are translocated across the cytoplasmic membrane), and thus conserves the redox energy in a proton gradient By similarity.
Catalytic activity	NADH + quinone = NAD+ + quinol. HAMAP MF_01394
Subunit structure	NDH-1 is composed of 14 different subunits. Subunits nuoA, H, J, K, L, M, N constitute the membrane sector of the complex By similarity.
Subcellular location	Cell inner membrane; Multi-pass membrane protein By similarity.
Sequence similarities	Belongs to the complex I subunit 3 family.

Ontologies

Keywords
Biological process	Transport
Cellular component	Cell inner membrane Cell membrane Membrane
Domain	Transmembrane
Ligand	NAD Ubiquinone
Molecular function	Oxidoreductase
PTM	Quinone
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	oxidation reduction Inferred from electronic annotation. Source: HAMAP photosynthesis, light reaction Inferred from electronic annotation. Source: HAMAP transport Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	integral to membrane Inferred from electronic annotation. Source: UniProtKB-KW plasma membrane Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	NADH dehydrogenase (ubiquinone) activity Inferred from electronic annotation. Source: InterPro quinone binding Inferred from electronic annotation. Source: UniProtKB-KW
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 123	123	NADH-quinone oxidoreductase subunit A HAMAP MF_01394		PRO_0000271222
Regions
	Transmembrane	11 – 31	21	Potential
	Transmembrane	68 – 88	21	Potential
	Transmembrane	93 – 113	21	Potential

Sequences

	Sequence		Length	Mass (Da)
	Q68X16-1 [UniParc]. Last modified October 11, 2004. Version 1. Checksum: C2FABB65DD99A125	FASTA	123	14,267
	10 20 30 40 50 60 MLQNSELLHE YLPIAIFFGI AVLVSGLIMM LPNLLSTKKY NKDKLEPYEC GFAPFSDARS 70 80 90 100 110 120 KFDIRFYLVA ILFIIFDLEI TFLVPWAISL NTIGKIGFFS MMFFLFVLII GFIYEWTKGA LDW

References

[1]

"Complete genome sequence of Rickettsia typhi and comparison with sequences of other Rickettsiae." McLeod M.P., Qin X., Karpathy S.E., Gioia J., Highlander S.K., Fox G.E., McNeill T.Z., Jiang H., Muzny D., Jacob L.S., Hawes A.C., Sodergren E., Gill R., Hume J., Morgan M., Fan G., Amin A.G., Gibbs R.A. , Hong C., Yu X.-J., Walker D.H., Weinstock G.M. J. Bacteriol. 186:5842-5855(2004) [PubMed: 15317790] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: ATCC VR-144 / Wilmington.

Cross-references

Sequence databases
EMBLGenBankDDBJ	AE017197 Genomic DNA. Translation: AAU03826.1.
RefSeq	YP_067308.1.
3D structure databases
ModBase	Search...
Genome annotation databases
GeneID	2958504.
GenomeReviews	Gene locus RT0346 in contig AE017197_GR.
KEGG	rty:RT0346.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	Q68X16.
OMA	Q68X16. IGFAYEW.
Enzyme and pathway databases
BioCyc	RTYP257363:RT0346-MON.
BRENDA	1.6.99.5. 281221.
Family and domain databases
HAMAP	MF_01394. [Tree]
InterPro	IPR000440. NADH_UbQ/plastoQ_OxRdtase_su3. [Graphical view]
PANTHER	PTHR11058. Oxidored_q4. 1 hit.
Pfam	PF00507. Oxidored_q4. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

NUOA_RICTY

Accession

Primary (citable) accession number: Q68X16

Entry history

Integrated into UniProtKB/Swiss-Prot:	January 9, 2007
Last sequence update:	October 11, 2004
Last modified:	June 16, 2009
This is version 33 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)